Helium Browser vs Mullvad Browser
| Helium Browser | Mullvad Browser | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | Free | Free |
| Open source | Yes | Yes |
| Platforms | Windows, macOS, Linux | Linux, macOS, Windows |
| Free plan | Yes | Yes |
| Supported platforms | both | both |
| Browser engine | chromium | gecko |
| Built-in ad blocking | Yes | Yes |
| Extension support | chrome_store | — |
| Cross-device sync | No | No |
| Open source | Yes | Yes |
| Tracking protection | — | advanced |
Both are listed in Best Web Browsers. On Freedom251, Mullvad Browser scores higher on our published basis.